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Finding the Fourth Proportional to 2,852.98, 4,279.63 and 879.97

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Solution

The fourth proportional to 2,852.98, 4,279.63 and 879.97 is: 1,320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.98 : 4,279.63 = 879.97 : x
  2. Step 2: Convert to fraction form
    2,852.98/4,279.63 = 879.97/x
  3. Step 3: Cross multiply
    2,852.98x = 4,279.63 × 879.97
  4. Step 4: Simplify right side
    2,852.98x = 3,765,930.91
  5. Step 5: Solve for x
    x = 3,765,930.91/2,852.98
  6. Step 6: Final answer
    x = 1,320.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.